Looks the part Gary.
Very John Ford 
This is all coming together very nicely.

Looking good Gary 
Nice setup and terrain modelling! Looking forward to see this coming together ...
This is shaping up to be spectacular. 
Thank you for the vote of confidence.
OK it's next week end, where are they 
Since you asked so nicely

Here they are.
Still work in progress but I have given the boards a basecoat of Cinnamon Brown and the a dry brush of Burnt Sienna. This gives the boards a nice reddish hue similar to the base colours of Monument Valley.

Some close ups with a better idea of the base colours.

Then I applied a drybrush of Pure Pumpkin followed by a coat of Squash Blossom (both orange shades from Crafters) which gives it a look like this:

I am now going to give a couple of final dry brushes with a Bright Yellow and then Sandstone to tone down the yellow a little which will give me the finish I am looking for.
Hope you like it so far.